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I have an LG LSN122HE model A/C in my office. It doesn't matter how far down I turn the temp, it continues to blow room temperature air. Suggestions?

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Seems like the coolant leaked out, second, unlikely thermostat is defective

Posted on Jul 14, 2009

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Does it start off blowing cold then goes to room temperature, or was it cold and now any time you turn it on its room temperature

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I have an LG AC and the lowest temperature setting is 60 degrees


Lowering the temperature setting doesn't change the temperature of the air coming out of the unit it just lets it run until the room temperature gets colder. Check the temp of the air coming out of the unit. If it isn't as cold as it used to be the charge could be low. First though you should make sure the filters are clean and the coils.You should also check the actual room temp. It's also possible the unit doesn't have enough capacity to keep up with the cooling load of the room.

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It sounds like a restriction in your ducting. Feel the A/C vents in the hot rooms to see if cold air is blowing out of them. If the ducts are restricted, then it is possible that the air conditioning coils are freezing up from lack of circulation. Inspect the ducts if you can to see if there is any restriction.

Note that even if you feel air coming out of the ducts, it could be ambient as opposed to cold. The best thing is to measure the air temperature coming out of the ducts. It should be around 20 degrees colder than the ambient air at the intake of the A/C.

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Lg split indoor fan runs non stop


Hello Hamid,
The unit is designed to run the indoor fanmotors continuously when in cooling mode on both indoor units (evaporators). The reason is that this circulates the air and the temperature thermistor or sensor is able to sense return air temperature and in turn start or stop the outdoor unit and compressor as required according to the setpoint temperature. The reason for either unit not reaching setpoint temperature can be a couple of reasons. A) Incorrect design - the unit may be too small for the application. You can calculate this roughly at 650BTU per square meter of room in a relatively warm ambient climate. Or secondly B) The outdoor unit has leaked and is short of refrigerant. You can check this when the outdoor unit is running by feeling the thicker copper tube on the right hand side of the unit. This should be cool to cold. If no temperature difference is felt, it is short of refrigerant. Hope this helps you. Goodbye

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I bought a Lg 11,500 btu air conditioner yesterday at home depot. It has been set on 60 degrees with the fan on high and will only bring my room temp down to 79....it does not feel cool


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Samsung window unit air conditioner model # AW2402M freezes up one time, and the next time freezes you out of the room. What is wrong with it, Termistat or compressor?


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